Electrically-operated switch.



Il A: LUNDEEN BGTMGAL'LY OPERTBD SWTE.

J 3o, was.

.A PPL TIGR FILED WIT NE 88E S STATES PATENT JOHN A. LUNDEEN, OFEDGEWOOD PARK, PENNSYLVANIA.

ELEo'rRioALLY-OPERATED SWITCH.

To'allwhomit may concern:

Be it known that I, JOHN A. LUNnnnN, av citizen of the United States,and a resident of EdgewoodPark, in the county of Allegheny and State ofPennsylvania, hai-'e ini vented "anew land Improved Electrically- A@perated Switch, of which the following is al full, clear, and ex'aetdescription.

- invention relates to electrically-op lolperat'edswitches, my moreparticular purpose y hei-ng'to produce Aa. device of this kind havl.mgcertain eonstructional advantages hereinafterdesc'rbed. I

More specificall stated, my invention- 1"5 compi-ellende Aan .eectrically-operated lever t0 be connected with a valve or the like, tobe .actuated 'occasionally in one direction -whenone circuit is closed,and in the opposite-direction when another circuit is closed.. 210.1. Myinvention further :oinprehends means A vcontrollable at 'will foradjusting the play l ofthe aforesaid lever'. A i Reference is tov be hadto the accompany ing; drawings forminga part of this speci- Vtication,in which sin'1ilar-characters of reference indicate corresponding partsin the Vffrvlree i' Ei ure -1 is a view partly in plan and port y insection, showing my improved 31).` controller as connected with a pistonvalve in such manner as to open andclose the saine when the various-v ofmagnets of the controller are energized; andFfig.- 2 is a suhstantiallyvertical-section upon the line 2-2 35.?,- ojf"1 f`=ig.y l, looking inthe direction of the aarow'tv'and'showing the means for adjustingthe-play of themovable lever. Fig; Bis a diagram of the Wiring.

-Atf3`is shown a. valve cylinder and con wf nectedwith it-are pipes 4,5. At"6 ;is a-piston which may control a supplyy of steam, a liquid 'ora gas, as the case may be, which is adapted under proper conditions topass into the valve casing 453 through the pipe 4 and to page out ofsaid .Valver'asing through thepipe 5.

A't 7 isa.l by-pass for. relieving back pres-v surev .upon the, pistonG. l At 8- 's avalvesten which is connected 5191i tithe-lever 9, thisleverfbcingmounted vn pon a'pivotv in 10 anilin electrical communicationwit a.w=i1-e1l. i

Mounted uponthelever 9 is a contact y plateland-disposed uponoppositesides 5 6@ thereoffare.contactsprings 13. 14.

Specication of Letters Patent.

rat-.enten .hay 2o, 1ero.

Application filed .Tune 30, 1909. Serial No. 505,209.

At- 15, 1G are posts and extending through the .same are screws 1 7.itl.. Adjacent to the posts l5, lf3 are plates 1 0, 2d oi insulatingmaterial. The Wire 11 leads directly to a binding post 21 which isinsulated from the hase and supports a imtallie" pla(e Q2 which one at atime hy the lever 9.

Magnets 27, 28 are disposcdnpon 0ppm site Sides of the lever 9, andconnected With. these' magnets are wires 2t), 3 Each of--v these magnetsQ7, '2S is provided with a COP` per tuhetl encircling its core. Thepurpose of this arrangement is to render the action ot the magnetsluggish and cause the armature when attracted hy these magnets totravel positively all oi the dist-ance necessary to make a completestroke of the armature. This construction of magnet gives the armatureS1- a. long and positive movement.

Mounted upon opposite' sides ofthe spool- 23 are nuts 24, 24, which arethreaded iii terna-Hy and fitted upon the valvel stem 8, the latterbeing threaded externally for this purpose. By adjusting the nutsft, 2l,thel general position of the valve piston may he controlled Withincertain limits, and this adjnStme't, itWill be noted, is independent ofany adjustment ofthe lever t) brought about by aid ofthe screws 17, 18.The wire 30 connectedwith a. l'rindii'ig post- 31 and thewire issimilarly connected with a binding post 32, these binding posts being'in electrical oonnnunication with thecontact' springs 13, 14. The lever9 is provided with a comparatively thick portion 31 of soft iron whichserves as an arma-ture for the two magnets.

At 35,34 are Wires which are connected with binding posts 35, 3G, thesebinding,

postscommunicating by aid of wires 37,' 38' with the magnets 37, 28.lractically'allvof the parts above mentioned are supported. upon a baseB9-of metal, thevalvecylin'der 3 being integral with thisbase, as willbe` understoodfrom Fig..2.` I do notlimit-my-p l SelffhoWever, to thisparticular constructionr At 40 is a battery and at 41 is a therme statfor closing a circuit from the battery 410 through either the Wire 33 orthc Wire 34, as the case may be.

The operation ot' my device is as follows: The wires 11, 33 and 34:being connected with the thermostat and one or more open circuitbatteries (not shown) in a manner already known in the art, the screws17, 18, are adjusted and the device is ready for use. I Will supposethat at the start the lever 9 is in the position illdicated in Fig. 1and that the action of a thermostat, or any other suitable device,completes a circuit, external to the device shown in Fig-1, from thewire 1l. to the Wire 34. This circuit may be traced as follows: Batteryand thermostat (not shown), Wire 11, armature 3l, lever 9, contactpla'te 12, contact spring 13', binding post 3l, Wire 30, magnet 28, Wire38, binding post 36, Wire 34:, back to battery and thermostat. Thisenergizes the magnet 28 which there* upon attracts the armature 31 andmoves the lever 9 so that the contact plate 12 disen gages the contactspring 13 and engages the4 contact spring 14:. The disengagement of theplate 12 from the contact spring 13 opens the circuit just traced andthis remains open for a time, owing to the condition of the thermostat.Consequently, the lever 9 now 'remains motionless in its new position4until another circuit is completed (by aid 'of the thermostat), thiscircuit being as follows: Battery and thermostat (not shown), Wire 1l,plate 22, armature 31, lever 9, contact plate 12, contactspring 14,binding post 32, wire 29, magnet 27, Wire', binding post 35, Wire 33,back to battery and thermostat. This circuit energizes the magnet 27 andcauses it to attract the armature 31, thereby `restoring the lever 9 toits' origi nal position indicated in Fig. 1. Eachinovement of the lever9, by shifting the position of the piston opens or closes' the pi e 4which, as above stated, may be employe for admitting steam, gas or -anyother uid or aeriform body into the casing 3. The move- -ments of thepiston 6 thus control communi -cation between the inlet pipe 4 and the-outlet pipe 5. In a' building to be1heated,-for

lnsta'nce, the pipe 4 may 'admit steam into the casing 3, this steampassing out through two subscribing the pipe 5 te heating system. It',now, the electric circuits above described be under control ofathermostat, it is obvious that changes in temperature, by affecting theY thermostat, may control the supply of steam.

I do not limit myself in all instances to the exact construction shown,for the reason that equivalents for the various parts may be employed'Without departing from the spirit of my invention.

The operator, by turning the screws 17, 18, may adjust vl'ithinreasonable-limits the travel of the lever 9 and consequently the travelof the valve piston G, which is itself separately adjusted so as toclose the valve completely or partially, as desired. In doing this, hemay regulate the travel of fluid through'the pipes 4, 5. i

The operator, by turning the nuts 24 and thus adjusting the spool 23relatively tothe stein 8, may to some extent control the posi tion ofthe valve relatively Vto its casing and may do this .to some extentindependently of the adj ustmcnt of the screws 17, 18.

Having thus described my invention, I claim as new and desire to secureby Letters Patent.'

' The combination of a base, a valve casing mounted thereupon, a valvemounted Within -said casing and slidable in a direct-ion ooaxialtherewith, a stem for said valve, a head carried by said stem, a leverconnected With said head, means for adjusting said le ver relatively tosaid stem for the purpose of affecting the stroke 'of said valve, saidlever being provided Witha portion serving as an armature, a pairofmagnetic members for retracting said, armture and thereby ac` tuatingsaid lever, a air of contacts to be opened and closed 'cmovements'ofsaid lever, connections.'A magnetic memb A to control saiagnetic members, and means controllable i' will for regulating the playorly wvhereof have nametoj' his specification 1n the Wltnesses'. y-

Jointv "in LUNnE'EN.

signed my presence of Witnesses:

H. E. CARMACK, ELIZABETH F. CARMAQK.

